diff --git a/src/qml/CMakeLists.txt b/src/qml/CMakeLists.txt
index d8dbc8a..7eda09a 100644
--- a/src/qml/CMakeLists.txt
+++ b/src/qml/CMakeLists.txt
@@ -161,6 +161,7 @@ qt_add_qml_module(appqml
         NodeHeader.qml
         Widgets.qml
         DebugPanel.qml
+        Utils.js
 )
 
 # Set up QML module directory for runtime
diff --git a/src/qml/DiskWidget.qml b/src/qml/DiskWidget.qml
index 1d561f6..76fbb41 100644
--- a/src/qml/DiskWidget.qml
+++ b/src/qml/DiskWidget.qml
@@ -2,6 +2,7 @@ import QtQuick
 import QtQuick.Layouts
 import Logos.Theme
 import Logos.Controls
+import "Utils.js" as Utils
 
 ArcWidget {
     id: root
@@ -12,26 +13,6 @@ ArcWidget {
 
     fraction: root.total > 0 ? Math.min(root.used / root.total, 1.0) : 0
 
-    function formatBytes(bytes) {
-        if (bytes <= 0) {
-            return "0 B"
-        }
-
-        if (bytes < 1024) {
-            return bytes + " B"
-        }
-
-        if (bytes < 1024 * 1024) {
-            return (bytes / 1024).toFixed(1) + " KB"
-        }
-
-        if (bytes < 1024 * 1024 * 1024) {
-            return (bytes / (1024 * 1024)).toFixed(1) + " MB"
-        }
-
-        return (bytes / (1024 * 1024 * 1024)).toFixed(2) + " GB"
-    }
-
     function refreshSpace() {
         let space = root.backend.space()
         root.total = space.total
@@ -52,15 +33,14 @@ ArcWidget {
         spacing: 2
 
         LogosText {
-            text: root.total > 0 ? root.formatBytes(root.used) : "—"
+            text: root.total > 0 ? Utils.formatBytes(root.used) : "—"
             font.pixelSize: 15
             font.bold: true
             Layout.alignment: Qt.AlignHCenter
         }
 
         LogosText {
-            text: root.total > 0 ? "/ " + root.formatBytes(
-                                       root.total) : "STORAGE"
+            text: root.total > 0 ? "/ " + Utils.formatBytes(root.total) : "STORAGE"
             font.pixelSize: 9
             color: Theme.palette.textTertiary
             font.letterSpacing: 1.3
diff --git a/src/qml/ManifestTable.qml b/src/qml/ManifestTable.qml
index ee8d01b..14c2163 100644
--- a/src/qml/ManifestTable.qml
+++ b/src/qml/ManifestTable.qml
@@ -5,6 +5,7 @@ import QtQuick.Layouts
 import QtCore
 import Logos.Theme
 import Logos.Controls
+import "Utils.js" as Utils
 
 // qmllint disable unqualified
 ColumnLayout {
@@ -31,17 +32,6 @@ ColumnLayout {
         onRejected: pendingManifest = null
     }
 
-    function formatBytes(bytes) {
-        if (bytes <= 0)
-            return "0 B"
-        if (bytes < 1024)
-            return bytes + " B"
-        if (bytes < 1024 * 1024)
-            return (bytes / 1024).toFixed(1) + " KB"
-        if (bytes < 1024 * 1024 * 1024)
-            return (bytes / (1024 * 1024)).toFixed(1) + " MB"
-        return (bytes / (1024 * 1024 * 1024)).toFixed(2) + " GB"
-    }
 
     Connections {
         target: root.backend
@@ -189,7 +179,7 @@ ColumnLayout {
                     }
                     Text {
                         width: 80
-                        text: root.formatBytes(parseInt(modelData.datasetSize))
+                        text: Utils.formatBytes(parseInt(modelData.datasetSize))
                         color: Theme.palette.textSecondary
                         font.pixelSize: 11
                         elide: Text.ElideRight
diff --git a/src/qml/UploadWidget.qml b/src/qml/UploadWidget.qml
index 3df4ea3..3d5525d 100644
--- a/src/qml/UploadWidget.qml
+++ b/src/qml/UploadWidget.qml
@@ -18,12 +18,10 @@ ArcWidget {
     fraction: root.uploadProgress / 100.0
     fillColor: root.isDone ? Theme.palette.success : Theme.palette.text
 
-    // ── Center content ────────────────────────────────────────────────────────
     ColumnLayout {
         anchors.centerIn: parent
         spacing: 2
 
-        // Idle or done: upload icon
         UploadIcon {
             dotColor: Theme.palette.textSecondary
             dotSize: 4
diff --git a/src/qml/Utils.js b/src/qml/Utils.js
new file mode 100644
index 0000000..f461ee6
--- /dev/null
+++ b/src/qml/Utils.js
@@ -0,0 +1,13 @@
+.pragma library
+
+function formatBytes(bytes) {
+    if (bytes <= 0)
+        return "0 B"
+    if (bytes < 1024)
+        return bytes + " B"
+    if (bytes < 1024 * 1024)
+        return (bytes / 1024).toFixed(1) + " KB"
+    if (bytes < 1024 * 1024 * 1024)
+        return (bytes / (1024 * 1024)).toFixed(1) + " MB"
+    return (bytes / (1024 * 1024 * 1024)).toFixed(2) + " GB"
+}
diff --git a/src/storage_resources.qrc b/src/storage_resources.qrc
index 6bcdabd..419d4b1 100644
--- a/src/storage_resources.qrc
+++ b/src/storage_resources.qrc
@@ -35,6 +35,7 @@
         <file alias="DownloadIcon.qml">qml/icons/DownloadIcon.qml</file>
         <file alias="DeleteIcon.qml">qml/icons/DeleteIcon.qml</file>
         <file alias="ArcWidget.qml">qml/icons/ArcWidget.qml</file>
+        <file alias="Utils.js">qml/Utils.js</file>
         <file>icons/storage.png</file>
     </qresource>
 </RCC>